Home / 1,020,784,505.20-1,531,176,757.80-850,723,385.20

Finding the Fourth Proportional to 1,020,784,505.20, 1,531,176,757.80 and 850,723,385.20

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Solution

The fourth proportional to 1,020,784,505.20, 1,531,176,757.80 and 850,723,385.20 is: 1,276,085,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,784,505.20 : 1,531,176,757.80 = 850,723,385.20 : x
  2. Step 2: Convert to fraction form
    1,020,784,505.20/1,531,176,757.80 = 850,723,385.20/x
  3. Step 3: Cross multiply
    1,020,784,505.20x = 1,531,176,757.80 × 850,723,385.20
  4. Step 4: Simplify right side
    1,020,784,505.20x = 1,302,607,874,735,176,448
  5. Step 5: Solve for x
    x = 1,302,607,874,735,176,448/1,020,784,505.20
  6. Step 6: Final answer
    x = 1,276,085,077.80

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Half scale
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Double scale
Find fourth proportional to 1,020,784,506.20, 1,531,176,759.30 and 850,723,386.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.